Ice forms in the night, but disappears with the heat of the sun.
And it grows, merges, disappears from the surface, sinks to the depths, and again emerges.
In summer at the Bureau Central the intermediate peak nearly disappears in the profound afternoon depression, but it is still recognizable.
41, E), which finally disappears altogether, and the endodermlamella disappears.
As a bundle is traced towards its blind termination in the mesophyll the peridesmic stereom first disappears, the sieve-tubes of the phloem are replaced by narrow elongated parenchyma cells, which soon die out, and the bundle ends with a strand of tracheids covered by the phloeotermic sheath.